[UL Listed] VCE 2-Pack CAT6 RJ45 Keystone Jack Inline Coupler-White Double female cat6 keystone can be used with Cat.6, Cat5, CAT5e Ethernet cables Gold plated contacts and easy snap-in retaining clip ensure a secure and corrosion free connection Fits all standard keystone wall plates and panels Future-proof your network for 10-Gigabit Ethernet at a Cat5e price with this convenient and cost effective multi-pack punch down keystone for Ethernet With UL Listed, just use it without concern.